The explorer is running in 'regtest' mode. This saves disk space, but there is limited data.
The code for this application can be found at github.com/pdxrod/blockchain_explorer.

home    blocks

Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 978
Hash: 4faa0fa8f3cc3f0886dc2a920c00e8ade9c6cfe15312ffc4088121a7f73ecc93
Previous block: 0e3474b0be861e778ed00e8cbb4121a6a5d408f3b911244b669b57fc516156c6
Next block: 58a89d7b07f9d8bb6d0e20135df426f7ccc4a46b67571f6743581ac802aca55f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857831
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 6844b01d1f1b682d92cd2e72661df237d292d672a3512eb23aa0e728e03d8913
Median time: 1707857831
Difficulty: 4.656542373906925e-10
Confirmations: 1266
Chainwork: 00000000000000000000000000000000000000000000000000000000000007a6
Bits: 207fffff